dorsal/arxiv
View SchemaMajorization in Quantum Adiabatic Algorithms
| Authors | Zhaohui Wei, Zhengfeng Ji, Mingsheng Ying |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606015 |
| URL | https://arxiv.org/abs/quant-ph/0606015 |
| DOI | 10.1103/PhysRevA.74.042320 |
| Journal | Phys. Rev. A 74, 042320(2006) |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
The majorization theory has been applied to analyze the mathematical structure of quantum algorithms. An empirical conclusion by numerical simulations obtained in the previous literature indicates that step-by-step majorization seems to appear universally in quantum adiabatic algorithms. In this paper, a rigorous analysis of the majorization arrow in a special class of quantum adiabatic algorithms is carried out. In particular, we prove that for any adiabatic algorithm of this class, step-by-step majorization of the ground state holds exactly. For the actual state, we show that step-by-step majorization holds approximately, and furthermore that the longer the running time of the algorithm, the better the approximation.
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"abstract": "The majorization theory has been applied to analyze the mathematical\nstructure of quantum algorithms. An empirical conclusion by numerical\nsimulations obtained in the previous literature indicates that step-by-step\nmajorization seems to appear universally in quantum adiabatic algorithms. In\nthis paper, a rigorous analysis of the majorization arrow in a special class of\nquantum adiabatic algorithms is carried out. In particular, we prove that for\nany adiabatic algorithm of this class, step-by-step majorization of the ground\nstate holds exactly. For the actual state, we show that step-by-step\nmajorization holds approximately, and furthermore that the longer the running\ntime of the algorithm, the better the approximation.",
"arxiv_id": "quant-ph/0606015",
"authors": [
"Zhaohui Wei",
"Zhengfeng Ji",
"Mingsheng Ying"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.042320",
"journal_ref": "Phys. Rev. A 74, 042320(2006)",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Majorization in Quantum Adiabatic Algorithms",
"url": "https://arxiv.org/abs/quant-ph/0606015"
},
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